TY  - BOOK
AU  - Pollard,A.H.
AU  - Farhat Yusuf,
AU  - Pollard,G.N.
TI  - Demographic techniques
SN  - 0080173780 (pbk.) :
U1  - 301.32018 
PY  - 1974///
CY  - [S.l.]
PB  - Pergamon Press
KW  - Demography
KW  - Methodology
N1  - Includes index
ER  -